drm/i915: Conditionally carve out GGTT PDE

It only works that way on GEN6 and GEN7. Let's not assume GENn will be
the same.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ben Widawsky 2013-04-08 18:43:52 -07:00 • committed by Daniel Vetter
commit 3eb1c005c6